Trailer lifting jack
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United States of America Patent
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Nov 25, 2014
Grant Date -
May 31, 2012
app pub date -
Nov 29, 2010
filing date -
Nov 29, 2010
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A trailer jack having a low profile which will not interfere with opening of a towing vehicle's tailgate. The jack has tubes telescopically contained within each other. A threaded rod has a threaded tube slidingly placed over it. The threaded tube has slots and a pin in the threaded rod slides within the slots for synchronous rotation. This provides even extension and retractions for the telescoping tubes relative to each other. The jack has a low profile that extends above the trailer tongue a minimal amount when the jack is extended. When the jack is retracted, no parts of the jack are raised above the tongue. Thus, the tailgate of the towing vehicle may be operated without hitting any part of the jack.
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Cited Art Landscape
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